A STUDY ON EPS PRODUCTION BY a MICROORGANISM EXPOSED TO COPPER(II) IONS

Year 2011, Volume: 23 Issue: 1, 1 - 12, 01.06.2011

Nur Koçberber Kılıç

Abstract

The microorganism used in this study isolated from industrial wastewaters including heavy metals. The microorganism was tested with regard to its copper(II) removal and EPS production at different pH levels and copper(II) concentrations. The optimum pH was 7 for both copper(II) removal and EPS production of the microorganism. The highest copper(II) removal values were obtained as 45.3% at 21.0 mg/L copper(II) and 41.8% at 43.1 mg/L copper(II) concentrations after incubation for 7 days, respectively. On the other hand, the highest EPS production of the bacteria was 969.6 mg/L in media with nearly 50 mg/L copper(II) concentration. The increasing EPS production of the microorganism in media with copper(II) proved that copper(II) was attached to the EPS produced

Keywords

EPS, bacteria, copper(II), wastewater

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